Because queue operations modify both ends of the collection, fixing one end at index 0 eliminates the requirement that elements be shifted.

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Quizplus · Accepted Answer

Queue operations typically involve adding elements to one end and removing them from the other. Fixing one end at index 0 would still require shifting elements to maintain the queue order after removals, unless a circular buffer or linked list implementation is used to avoid such shifts.

Because Queue Operations Modify Both Ends of the Collection, Fixing